Pronunciation: (tOO'wā'),[key] —adj. 1. providing for or allowing movement in opposite directions, or both to and from a place: two-way traffic. 2. allowing or entailing communication or exchange between two persons, groups, countries, etc.
3. involving two parties or participants, as a relationship or agreement; two-sided: a two-way race for the nomination. 4. entailing responsibilities, obligations, etc., on both such parties.
5. capable of both receiving and sending signals: a two-way radio. 6. capable of being used in two ways.